Ultraviolet curable silicone composition and cured product of same

Abstract

Provided is an ultraviolet curable silicone composition capable of being ejected via inkjet ejection. The composition of the invention is an ultraviolet curable silicone composition comprising: (A) an organopolysiloxane represented by the following general formula (1) wherein each R 1 independently represents a group selected from a monovalent aliphatic hydrocarbon group having 1 to 10 carbon atoms, an acryloyl group, a methacryloyl group, an alkyl acrylate group and an alkyl methacrylate group, while the component (A) has per molecule at least two groups selected from an acryloyl group, a methacryloyl group, an alkyl acrylate group and an alkyl methacrylate group; n represents a number satisfying 10≤n≤1,000; (B) a monofunctional (meth)acrylate compound having no siloxane structure; and/or (C) a multifunctional (meth)acrylate compound having no siloxane structure; and (D) a photopolymerization initiator.

1 . An ultraviolet curable silicone composition comprising:
 (A) 100 parts by mass of an organopolysiloxane represented by the following general formula (1)   
       
         
           
           
               
               
           
         
       
       wherein each R 1  independently represents a group selected from a monovalent aliphatic hydrocarbon group having 1 to 10 carbon atoms, an acryloyl group, a methacryloyl group, an alkyl acrylate group and an alkyl methacrylate group, while the component (A) has per molecule at least two groups selected from an acryloyl group, a methacryloyl group, an alkyl acrylate group and an alkyl methacrylate group; n represents a number satisfying 10≤n≤1,000;
 (B) a monofunctional (meth)acrylate compound having no siloxane structure; and/or (C) a multifunctional (meth)acrylate compound having no siloxane structure, the component (B) and/or the component (C) being in an amount of 1 to 500 parts by mass per 100 parts by mass of the component (A); and 
 (D) a photopolymerization initiator in an amount of 0.1 to 20 parts by mass per 100 parts by mass of the component (A). 
 
     
     
         2 . The ultraviolet curable silicone composition according to  claim 1 , further comprising:
 (E) an organopolysiloxane being in an amount of 0.1 to 1,000 parts by mass per 100 parts by mass of the component (A), and represented by the following general formula (2)   
       
         
           
           
               
               
           
         
       
       wherein each R 2  independently represents a group selected from a monovalent aliphatic hydrocarbon group having 1 to 10 carbon atoms, an acryloyl group, a methacryloyl group, an alkyl acrylate group and an alkyl methacrylate group, while the component (E) has per molecule one group selected from an acryloyl group, a methacryloyl group, an alkyl acrylate group and an alkyl methacrylate group; m represents a number satisfying 10≤m≤1,000. 
     
     
         3 . The ultraviolet curable silicone composition according to  claim 1 , wherein the composition has a viscosity of not higher than 2,000 mPa·s at 23° C., and has a surface tension of not smaller than 21 mN/m. 
     
     
         4 . A cured product of the ultraviolet curable silicone composition as set forth in  claim 1 . 
     
     
         5 . An ink-jet ink composition containing the ultraviolet curable silicone composition as set forth in  claim 1 . 
     
     
         6 . An ink composition for 3D printer, containing the ultraviolet curable silicone composition as set forth in  claim 1 . 
     
     
         7 . An ink-jet ink composition containing the ultraviolet curable silicone composition as set forth in  claim 2 . 
     
     
         8 . An ink-jet ink composition containing the ultraviolet curable silicone composition as set forth in  claim 3 . 
     
     
         9 . An ink composition for 3D printer, containing the ultraviolet curable silicone composition as set forth in  claim 2 . 
     
     
         10 . An ink composition for 3D printer, containing the ultraviolet curable silicone composition as set forth in  claim 3 .